Round and sectional boiler



Dec. 26, 1950 o. MULLER 2,535,507

ROUND AND SECTIONAL BOILER Filed Jan. 7, 1946 r 4 Sheets-Sheet 1 swam/tom UZZ MuZZer 0. MULLER ROUND AND SECTIONAL BOILER Dec. 26, 1950 4 Sheets-Sheet 2 7 Filed Jan. '7, 1946 gwuwm Dec. 26, 1950 o. MULLER 2,535,507

RQUND AND 'SECTIONAL BOILER Filed Jan. '7, 1946 4 Sheets-Sheet 3 Dec. 26, 1950 o. MULLER ROUND AND SECTIONAL BOILER Filed Jan. 7, 1946 4 Sheets-Sheet 4 3mm 02% Ma Z267 Patented Dec. 26, 1950 UNITED STATES PATENT OFFICE ROUND AND SECTIONAL BOILER Otto Mulier, Bronx,- N. Y.

Application .ianuary 7, 1946, Serial N 0. 639,564

3 Claims.

This invention relates to boilers.

An ob ect of this invention is to provide a boiler wherein a maximum heating surface is exposed to the heating medium.

Another obJect or this invention is to provide a boiler wherein horizontal heating surfaces upon which soot, fire ash, or the like can accumulate are eliminated within the boiler.

A further object of this invention is to provide a boiler which includes means controlling the draft through the boiler in order that the heat will be evenly distributed, to the heating surfaces of the boiler.

A further object of this invention is to provide a boiler which is so constructed and arranged that it may be formed from a casting, or from sheet metal.

In a modified form of this boiler there are provided a plurality of connected sections, so that any desired capacity may be obtained by connecting together the necessary number of sections.

To the foregoing objects, and others which may hereinafter more fully appear, the invention consists of the novel construction, combination and arrangement of parts, as will be more specifically referred to and illustrated in the accompanyin drawings, but it is to be understood that changes, variations, and modifications may be resorted to which fall within the scope of the invention as claimed.

In the drawings:

Figure 1 is a detailed top plan of a boiler con structed according to an embodiment of this invention,

Figure 2 is a vertical section taken on the line 2-2 of Figure 1,

Figure 3 is a vertical section taken on the line 3-3 of Figure 1,

Figure 4 is a section taken on the line 4-4 of Figure 2,

I Figure 5 is a plan view of a modified form of this invention with the hood removed,

Figure 6 is a sectional view taken on the line 66 of Figure 5,

Figure 7 is a vertical section partly broken away through the device shown in Figure 5,

Figure 8 is a fragmentary sectional view taken substantially on the line 88 of Figure 7, and

Figure 9 is a fragmentary sectional view taken on the line 9-9 of Figure 7.

Referring to the drawings and first to Figures 1 to 4 inclusive, the numeral Iii designates generally an outer cylindrical wall or jacket which is disposed in upstanding position and i mounted ona hollow base H which form an a h receiving chamber [3. The outer wa l It has mounted therein an inner cvlindrical wall l2 disposed in spaced relation with respect to the outer wall l0, so as to thereby form a liquid or fluid space M. The outer wall II] has a top wall I5 secured thereto and the inner wall I2 has a top wall I6 secured thereto and spaced from the top wall I5. A space I! is formed between the two top walls I5 and I6 within which steam or vapors is adapted to be positioned and preferably water, as indicated by the numeral I8, is disposed partly within the chamber I1. When the boiler is used in a hot water heating system the entire chamber Ii is filled with water.

A flue I9 is secured to the top wall It and extends upwardly through the top wall I5 and has mounted in the extended upper end thereof a damper 20. A pair of flues 2| are disposed on opposite sides of the flue i9, which is the central flue, and the pair of flues 2i extend through the top Wall l5 and each flue 2| has a damper 22 mounted in the upper extended end thereof. An upstanding housing 23 is mounted on the top wall I5, enclosing the extended ends of the dues I9 and 2| and the housing 23 has a cap 24 removably mounted on the upper end thereof. The cap 24 is formed of a plate 25 having a flange 26 on the lower side thereof which encompasses the upper end of the housing 23. An outlet pipe 2'! is connected with the housing 23 and may be extended to a stack or the like for drawing off the products of combustion.

In order to provide an improved means for heating the water between the inner and outer walls, I have provided a pair of hollow baifies, generally designated as 28. The baffles 28 are disposed in spaced apart relation on opposite sides of the central flue I9 and each baflie 28 is formed of vertically disposed parallel walls 29 connected together at their lower ends by a horizontal connectin wall 3i). The opposite ends of the vertical walls 29 are secured to the side wall I2 and the upper edges of the walls 29 are secured to the top wall It. In this manner the baflies 29 communicate with the chamber Hi and with the chamber I'I. Through the provi"ion of the vertical hollow bafiles a maximum heating surface will be provided within the combu tion chamb r 3| which is formed within the inner Wall I2 and no horizontal surfaces will be exposed to the products of combustion, wherein the ashes or other fine mteria1 may accumulate, so as to thereby reduce the heating efficiency of the boiler.

Referring now to Figures 5 to 9 inclusive. there is dis losed a sectional boiler. The sectional boiler includes opposite end sections 32 and 33 and intermediate sections 34. There may be as many interme iate s ctions 34 as may be desired, there being thre intermediate sections sho n in the drawings which are of like construction. The

end members 32 and 33 are of like construction and each includes, as shown in Figure 8, an outer transversely arcuate wall which has spaced inwardly therefrom an inner wall 36 thereby forming a liquid space 31. The vertical inner edges of the Walls 35 and 36 are connected together by connecting walls 38 and the walls 38 on their inner sides are formed with vertical ribs 39. The end member 32 also has dependingly disposed therein a hollow baffle M which is formed of spaced parallel vertically disposed walls 4! and 42 connected between the inner wall 36 and connected also to a top wall 43. The baifle communicates with the chamber 91 and also communicates with an upper chamber 44 which is formed between the inner top wall 43 and an outer top wall 45.

A vertically disposed flue 4-6 communicates the combustion chamber 4? of the end member 32 with a housing 58 which is mounted on the upper side of the top wall 15. A damper $9 is mounted in the upper extended end of the flue l5 and is individually adjustable in order that the gases may enter the housing 39 in an even manner through adjustment of the various individually adjustable dampers. 34 are of like construction and each includes an inverted substantially U-shaped outer wall 59 and an inverted U-shaped inner wall 5i. The inner and outer walls 59 and 5! are connected together at the opposite ends thereof by connecting walls 52 and each wall 52 has formed integral therewith a rib 53 confronting a similar rib of an adjacent section or confronting the rib 39 of an end section. In this manner the ends and the intermediate sections may be drawn tightly together so as to close the spaces between the sections and the various sections are sealed relative to each other by sealing means St in the form of asbestos or the like. The inner end of the end section 32 has formed integral with the inner wall 55 thereof an arcuate wall 55 which is of semi-cylindrical construction and which confronts a semi-cylindrical wall 5? carried by the adjacent end wall 58 of an intermediate section 34.

A flue pipe 59 is adapted to be inserted between the confronting arcuate walls 55 and 5'! and is extended partly above the top Wall 25 projecting into the housing 48 and the flue pipe 59 has a damper 89 disposed therein which is individually adjustable. The housing 29 has a cap 9! removably mounted on the upper end thereof and the housing 39 has an outlet nipple 92 extending therefrom which may be connected to a stack or the like. intermediate section 34 being formed of vertically disposed side Walls 69 connected together at their lower ends by a connecting wall 65. The opposite ends and the upper edge of the baffle 63 communicate with the chamber 69 between the two walls 59 and 5! and with the upper chamber 5'! formed between the bights of the U-shaped members 59 and 5E. The various sections are coupled together so that the boiler and steam may freely circulate between the inner and outer Walls by means of coupling nipples 68. Preferably the lower ends of the outer walls are bulged outwardly, as at 69, so as to provide communicating chambers '50 and bosses H are formed at the lowered ends of the end walls 52 so that the connecting nipples 68 may be tightly inserted in the bosses H. The steam chambers 44 and 6'1 communicate with each other through connecting nipples 12 which are tightly mounted in the adjacent walls and 58 of adjacent sections. It

The intermediate sections A hollow ballie 93 is disposed in the 5 will be understood that one or more fuel feed openings 13 may be provided in either the end or intermediate sections and that suitable grates will be mounted in the lower portion of the boiler above the ash housing 14 which forms the base for the boiler. The various boiler sections may be held together by suitable tie rods of conventional construction.

The exact configuration illustrated is regarded as the optimum, but some of the desirable results inherent in this disclosure may be obtained by various slight modifications including some departure from the exact configuration shown, and it is therefore requested that the scope of the invention should be regarded as limited only by the terms of the claims.

What I claim is:

1. A sectional boiler comprising hollow end and hollow intermediate members, each of said members being formed of spaced apart inner and outer walls, and a hollow bafile depending from the bight of said inner wall, said bafiie communicating with the side and top spaces between said walls, flow means connecting said members together for placing said spaces between said walls in communication with each other, vertically disposed fiue members between adjacent pairs of said hollow members and having the top ends thereof extending above said outer wall, a cap engaging over said top ends including a removable top plate, and independently adjustable dampers carried by each of said fiues.

2. A boiler comprising spaced apart inner and outer top and side walls connected together to define a fluid chamber therebetween, a plurality of spaced apart hollow balile members depending from the inner top wall and communicating with said fluid chamber, vertically disposed flue members between said baffle members and between said baflie members and the inner side walls and extending through the inner and outer top walls, a cap engaging over the top ends of said fiue members above said top wall including a removable top plate, and independently adjustable dampers carried by said flue members.

3. A sectional boiler comprising upright hollow end members, intermediate hollow inverted U- shaped members, at least one hollow vertically disposed baiiie carried by each end and each intermediate member and communicating at three edges thereof with the water spaces within said members, flow means connecting said end and intermediate members together for placing said spaces in communication with each other, an upwardly extending flue between adjacent pairs of said members, a cap engaging over the upper ends of said lines, a removable top plate on said cap, and independently adjustable dampers carried by said flues.

OTTO MULLER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Num er Name Date 456,747 Weston July 28, 1891 459,096 Howatt Sept. 8, 1891 903,700 Frost Nov.10, 1908 1,566,011 Hook Dec. 15, 1925 2,034,172 Bieber Mar. 17, 1936 2,034,782 Thomes Mar. 24, 1936 2,273,453 Vanderberg Feb. 17, 1947 

